.OST, a Microsoft Windows file type associated with Microsoft Outlook, part of the Microsoft Office product suite. This file is generated by the application for the purpose of storing the content of the user's mailbox on the local hard drive for offline use. In Office XP and earlier versions, the OST file will become corrupt if its size grows to over 2 gigabytes, generally causing Outlook to freeze up in use or while starting up. Reducing the size of the mailbox and manually deleting the file is the solution for this condition (a new file is created automatically the next time the program is started). Office 2003 features a new format for the file with support for a 20-gigabyte working file size.
Officer Safety Training, in Law enforcement in the United Kingdom. This covers self-defence and is given to all UK Police Officers as part of their initial training. All officers must pass regular OST updates and tests during their careers.
Open Source Track, a licensing and distribution model for music initiative
OST is an abbreviation for Otraslevoy STandart (industrial standard) in Russian (USSR, Russia), similar to GOST, but for industry rather than government.
The Swedish, Danish and Norwegian word for cheese.
This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.
